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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * String functions
- *
- * Copyright (c) 2020 AKASHI Takahiro, Linaro Limited
- */
- #include <common.h>
- #include <charset.h>
- #include <efi_loader.h>
- /**
- * efi_create_indexed_name - create a string name with an index
- * @buffer: Buffer
- * @name: Name string
- * @index: Index
- *
- * Create a utf-16 string with @name, appending @index.
- * For example, L"Capsule0001"
- *
- * The caller must ensure that the buffer has enough space for the resulting
- * string including the trailing L'\0'.
- *
- * Return: A pointer to the next position after the created string
- * in @buffer, or NULL otherwise
- */
- u16 *efi_create_indexed_name(u16 *buffer, size_t buffer_size, const char *name,
- unsigned int index)
- {
- u16 *p = buffer;
- char index_buf[5];
- size_t size;
- size = (utf8_utf16_strlen(name) * sizeof(u16) +
- sizeof(index_buf) * sizeof(u16));
- if (buffer_size < size)
- return NULL;
- utf8_utf16_strcpy(&p, name);
- snprintf(index_buf, sizeof(index_buf), "%04X", index);
- utf8_utf16_strcpy(&p, index_buf);
- return p;
- }
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